Opt out of download feedback from settings

chrome/browser/resources/options/browser_options.js

Index: chrome/browser/resources/options/browser_options.js
diff --git a/chrome/browser/resources/options/browser_options.js b/chrome/browser/resources/options/browser_options.js
index cc01414f19c8147c0156f394c0a52791de7edb93..24a946aed47987e689a8f63c0f511a00d776c4d7 100644
--- a/chrome/browser/resources/options/browser_options.js
+++ b/chrome/browser/resources/options/browser_options.js
@@ -273,6 +273,15 @@ cr.define('options', function() {
               [String(event.currentTarget.checked)]);
         };
       }
+      // The safe browsing download feedback setting requires special handling.
+      // The pref is actually an enum, which needs to be mapped to a boolean.
+      $('safe-browsing-download-feedback-enabled').checked =
+          loadTimeData.getBoolean('sbDownloadFeedbackEnabled');
+      $('safe-browsing-download-feedback-enabled').onclick = function(event) {
+        chrome.send(
+            'downloadFeedbackStatusChanged',
+            [Boolean($('safe-browsing-download-feedback-enabled').checked)]);
+      };
 
       // Bluetooth (CrOS only).
       if (cr.isChromeOS) {